Class: Divide::Extractor

Inherits:
Object
  • Object
show all
Defined in:
lib/divide/extractor.rb

Constant Summary collapse

DEFAULT_ENV = 
{ 'PORT' => '5000' }.merge(ENV)

Instance Method Summary collapse

Constructor Details

#initialize(options = []) ⇒ Extractor

Returns a new instance of Extractor.



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# File 'lib/divide/extractor.rb', line 7

def initialize(options=[])
  @options = options

  overwrite_env_variables
  overwrite_options
  escape_double_quotes
end

Instance Method Details

#env_content ⇒ Object 



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# File 'lib/divide/extractor.rb', line 19

def env_content
  @env_content ||= File.read('./.env') rescue ''
end

#env_variables ⇒ Object 



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# File 'lib/divide/extractor.rb', line 45

def env_variables
  @env_variables ||= begin
    env_content.split(/\n/).inject({}) do |memo, line|
      variable, value = line.split(/=/)
      memo.merge variable => value
    end
  end
end

#escape_double_quotes ⇒ Object 



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# File 'lib/divide/extractor.rb', line 36

def escape_double_quotes
  procfile_content.gsub!('"', '\"')
end

#extract_processes! ⇒ Object 



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# File 'lib/divide/extractor.rb', line 40

def extract_processes!
  return nil if procfile_content.empty?
  YAML.load(procfile_content)
end

#overwrite_env_variables ⇒ Object 



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# File 'lib/divide/extractor.rb', line 54

def overwrite_env_variables
  DEFAULT_ENV.merge(env_variables).each do |variable, value|
    procfile_content.gsub!("$#{variable}", value)
  end
end

#overwrite_options ⇒ Object 



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# File 'lib/divide/extractor.rb', line 23

def overwrite_options
  @options.each do |option|
    next if option.length < 2

    key = option[0]
    value = option[1]

    procfile_content.scan(/\s?#{key}\s(\S+)/).each do |value_to_overwrite|
      procfile_content.gsub!(value_to_overwrite[0], value)
    end
  end
end

#procfile_content ⇒ Object 



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# File 'lib/divide/extractor.rb', line 15

def procfile_content
  @procfile_content ||= File.read('./Procfile') rescue ''
end